227528 ⎘
Substation equipment, e.g. for use by subscribers; Interface circuits for coupling substations to external telephone lines Programmable or microprocessor-controlled
Wireless earphone capable of voice communication
#2Communication apparatus and method with off-hook detection and power supply control
#3Analog front-end transmitter and a connection method of an X-digital subscriber line having a pre-distortion mechanism
#4Communication System in a Package Formed on a Metal Microstructure
#5COMMUNICATION DEVICE AND METHOD THEREOF
#6Subscriber Line Interface Circuitry Line Driver
#7Attenuation and termination circuit using impedance synthesis
#8Device for Filtering Out Unwanted Phone Solicitations
#9Communication conference system, voice changing device, and signal converting adaptor
#10COMPUTER SYSTEM WITH INTERNET PHONE FUNCTIONALITY
#11Audio processing apparatus
#12TELEPHONE INTERCOM REMOTE LINE INTERFACE MODULES FOR INSTALLATIONS WITH NON-LOCALIZED POINTS OF DEMARCATION
#13PARTITIONED VOICE COMMUNICATION COMPONENTS OF A COMPUTING PLATFORM
#14Sound volume control apparatus
#15Telecommunications Interruption and Disconnection Apparatus and Methods
#16VOIP With Local Call Access
#17VOIP with Local Call Access
#18Prevention of an alarm activation and supporting methods and apparatus
#19SYSTEM FOR THE APPLICATION AND REMOVAL OF INTERCOM TELEPHONE POWER UPON ACTIVATION OR DEACTIVATION OF TELEPHONE COMPANY SERVICE
#20Telephone Index Device
#21On-waiting apparatus of communication device
#22Programmable subscriber line circuit partitioned into high voltage interface and digital control subsections
#23Mode-dependent, multiple bias-driven battery switch for subscriber line interface circuit
#24Apparatus and method of simulating telephone “in use” signals in a line in a telephone ring system
#25Communication system
#26Telecommunications system and method for providing an automatic notification of availability of a communication device to establish a telephone call
#27Telecommunications interruption and disconnection apparatus and methods
#28Low current telephone power line unit
#29Local control of call features in a telephone system
#30Communications device for a wireless and land-line network
#31Automated, wrap-around telephone dialing
#32Voice-over-internet protocol device